Belimo CFU-D221-SS Installationshandbuch
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Installation manual
Mounting Method
1. open the left clip
with screw driver
4. Mounting the
housing
Wiring Diagram
CFU-D221 / D222
L
Ext.
6A fuse
Sensor
L
Lo Mid Hi
N
I
II
III
VO VC
FAN
N
CFU-D221-SS
L
Occupancy
6A fuse
contact
S1 S2 S3
L
N
2
3
1
Actuator
N
LCD Electronic Thermostat CFU-D series
2. open the right clip
with screw driver
5. Wiring
Ext.
Occupancy
Sensor
contact
S1 S2 S3
I
VO VC
2
3
1
FAN
Actuator
2-wire actuator connection
3-wire actuator connection
3. Open the front cover
6. Close the front cover
1
2
CFU-D422
L
Ext.
Occupancy
6A fuse
Sensor
contact
L
S1 S2 S3
Lo Mid Hi
N
CO
CC
I
II
III
2
3
1
FAN
Actuator for
cooling
N
HO HC
2
3
1
Actuator for
heating
1